EP 0057309 A3 19820901 - SLIDING VANE MOTOR WITH VANE BIASING MEANS
Title (en)
SLIDING VANE MOTOR WITH VANE BIASING MEANS
Publication
Application
Priority
US 23076681 A 19810202
Abstract (en)
[origin: EP0057309A2] A vane motor which uses two-lip vanes has a fluid restrictor in a fluid passage which connects the inner and outer ends of each vane. High pressure fluid is supplied to the inner end of each vane as it traverses the transfer and sealing zone. This fluid flows through the fluid passage to the outer end of the vane to pressure balance the vane. In the event the outer end of a vane is separated from the cam ring the high pressure fluid at the outer end of vane flows to the low pressure area and a pressure drop is created across the restrictor which results in a force which biases the vane towards the cam ring.
IPC 1-7
IPC 8 full level
F01C 21/08 (2006.01)
CPC (source: EP US)
F01C 21/0863 (2013.01 - EP US)
Citation (search report)
- [X] FR 2184280 A5 19731221 - ABEX CORP [US]
- [Y] US 3865520 A 19750211 - KRAMER LEO, et al
- [Y] US 3598510 A 19710810 - AOKI YASUO
- [Y] GB 1150736 A 19690430 - DOWTY TECHNICAL DEV LTD
- [A] US 2522824 A 19500919 - HICKS THOMAS L
- [A] FR 1504568 A 19671208 - BOSCH GMBH ROBERT
- [A] US 2873683 A 19590217 - SHERWOOD WALTER A
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
EP 0057309 A2 19820811; EP 0057309 A3 19820901; EP 0057309 B1 19860416; CA 1169701 A 19840626; DE 3174413 D1 19860522; US 4374632 A 19830222
DOCDB simple family (application)
EP 81304709 A 19811009; CA 388403 A 19811021; DE 3174413 T 19811009; US 23076681 A 19810202